[PATCH v3 05/11] qla2xxx: Prevent multiple ADISC commands per session

[Himanshu Madhani <hmadhani@xxxxxxxxxxx>]

From: Quinn Tran <qtran@xxxxxxxxxxx>

add check to allow 1 discovery command per session to be sent.

Signed-off-by: Quinn Tran <qtran@xxxxxxxxxxx>
Signed-off-by: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
---
 drivers/scsi/qla2xxx/qla_init.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 2d9336a87e42..ba5da365ee4a 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -471,9 +471,11 @@ qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
 {
 	srb_t *sp;
 	struct srb_iocb *lio;
-	int rval;
+	int rval = QLA_FUNCTION_FAILED;
+
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
 
-	rval = QLA_FUNCTION_FAILED;
 	fcport->flags |= FCF_ASYNC_SENT;
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
-- 
2.12.0